DOK7 congenital myasthenic syndrome.
Despite being a fairly recent discovery, DOK7 congenital myasthenic syndrome (CMS) is the third most common form of CMS in the United Kingdom. DOK7 is a postsynaptic protein associated with the AChR clustering pathway. In contrast to AChR deficiency due to epsilon subunit mutations, onset of DOK7 CMS tends to be later--ages two to three years--and in DOK7 CMS eye movements are usually spared and anticholinesterases can exacerbate the weakness. The typical phenotype of DOK7 CMS is of a limb gi...Expand abstract
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